Bug 1276255

Summary:	golang-1.5 breaks tls handshake certificate chain verification
Product:	[Fedora] Fedora	Reporter:	Jan Chaloupka <jchaloup>
Component:	golang	Assignee:	Vincent Batts <vbatts>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	23	CC:	admiller, golang-updates, jcajka, lemenkov, renich, s, vbatts
Target Milestone:	---
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Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
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Clone Of:		Environment:
Last Closed:	2015-10-29 14:53:10 UTC	Type:	Bug
Regression:	---	Mount Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1274854

Description Jan Chaloupka 2015-10-29 09:22:05 UTC

Description of problem:
When building kubernetes with go-1.5, 'kubectl exec --v=9 mock /bin/sh -i' ends with "tls: handshake did not verify certificate chain". This does not happen with go-1.4,

Version-Release number of selected component (if applicable):
golang-1.5.1-1.fc23

How reproducible:
always

Steps to Reproduce:
See bz#1274854

Comment 1 Jan Chaloupka 2015-10-29 09:40:33 UTC

Based on https://github.com/golang/go/issues/12024, it should be fixed.

This PR [1] introduces the issue. This PR [2] is supposed to fix it. Does not appear so. Maybe it is a question of correct configuration.

[1] https://github.com/golang/go/commit/3cf15b57f76400b22366ccd8ef5b211c72ab6a7f
[2] https://github.com/golang/go/commit/46a29138827cefb15e437f291cbb2ccda685b840

Comment 2 Jan Chaloupka 2015-10-29 14:53:10 UTC

Confirming it is fixed in golang. Kubernetes upstream has refactored and patched the code for TLS connection in 1.2. Backporting the patch to 1.0.6 solves the issue.